Problems from 2021 ICPC North America Regional Programming Contests (March 5 2022)

Name
Fastest
Shortest
Authors
Full Solves
Ratio
Difficulty
Languages
Archery Accuracy0.01871473574%7.1Harden
Average Character0.00271901173291%1.9Easyen
Black and White0.0759220616882%4.7Mediumen
Circle Bounce0.002001079488%5.1Mediumen
Diagonals0.001853694870%6.9Harden
Dorm Room Divide0.0147627319371%6.2Harden
Double Password0.00182694252294%1.5Easyen
Fail Them All!0.008991528556%7.9Harden
Hopscotch 5000.1187818413071%7.1Harden
Overdraft0.00361356121490%1.9Easyen
Problem Set Construction0.01940544074%6.5Harden
Reversibly Cyclic Strings0.003133128185%3.2Mediumen
Rise and Fall0.008835025773%4.5Mediumen
Scaling Recipe0.0034100891791%1.9Easyen
Shortest Missing Subsequences0.0939415211576%5.7Harden
Square Bounce0.00410765876%5.1Mediumen
Tetris Generation0.009043328466%5.8Harden
Tournament Seeding0.0122025521082%3.9Mediumen
Tree Hopping0.0289329221975%6.0Harden
Who Goes There?0.008849139380%3.5Mediumen
XOR Island0.002791228267%6.5Harden